Mean, median, and mode are all equal in a normal distribution.
The Mean is the average of a given set of values. The Median is the value that has the same number of smaller values than the number of higher values, it is in the middle of them. In a symmetrical distribution the Mean is equal to the Median. In an asymmetrical distribution they have different value.
True. You can find many references including wikipedia on the Normal distribution on the internet.
If there is any skewness in the distribution.
Yes.
Yes.
Yes, and they WILL be if the distribution is symmetrical.
No. They are equal only if the distribution is symmetrical.
Mean, median, and mode are all equal in a normal distribution.
The median and mode.
They are all equal . . . they are the same.(In an asymmetric distribution they are not equal.)
Median.
All equal.
The mean, median, and mode of a normal distribution are equal; in this case, 22. The standard deviation has no bearing on this question.
The Mean is the average of a given set of values. The Median is the value that has the same number of smaller values than the number of higher values, it is in the middle of them. In a symmetrical distribution the Mean is equal to the Median. In an asymmetrical distribution they have different value.
If it is a symmetric distribution, the median must be 130.
Not necessarily.